Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
319 AM EST Tue Nov 10 2020

Valid 00Z Wed Nov 11 2020 - 00Z Wed Nov 18 2020

The closed upper west of Hawaii is forecast to slowly drift
westward and away from the state over the next few days.  The
upper ridge is expected to fill in as the ridge axis expands and
the surface high to the north of the state builds.  There may be a
weak upper trough that tracks just south of the Islands by the end
of the week and into the weekend, with a col developing in the
ridge axis by the end of the forecast period.

In terms of sensible weather, the building high north of the state
will tend to keep the Trades strong with breezy to windy
conditions through the middle of this week, with a slight backing
of the winds from ESE to ENE expected.  Mainly terrain induced
showers can be expected for much of the forecast period, with a
better chance for more enhanced rainfall by the weekend owing to
the upper trough approaching.  It appears that the heaviest
rainfall should remain south of the Big Island based on the latest
model projections.

Hamrick